South Plainfield
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
South Plainfield, NJ

January, like December, in South Plainfield, New Jersey, is another cold winter month, with average temperature varying between 36°F (2.2°C) and 23.9°F (-4.5°C). The coldest month is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C). Weather in January »

February, the last month of the winter, in South Plainfield, is also a wintry month, with average temperature varying between 25.7°F (-3.5°C) and 39.2°F (4°C). In South Plainfield, the average high-temperature is essentially the same as in January - a still cold 39.2°F (4°C). Weather in February »

The first month of the spring, March, is a chilly month in South Plainfield, New Jersey, with average temperature varying between 32.9°F (0.5°C) and 47.3°F (8.5°C). In South Plainfield, the average high-temperature slightly increases, from a wintry 39.2°F (4°C) in February, to a frosty 47.3°F (8.5°C). Weather in March »

April is a mild spring month in South Plainfield, New Jersey, with average temperature fluctuating between 59°F (15°C) and 43.3°F (6.3°C). In April, the average high-temperature increases, from a chilly 47.3°F (8.5°C) in March, to a mild 59°F (15°C). Weather in April »

The last month of the spring, May, is a pleasant month in South Plainfield, New Jersey, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.3°F (20.7°C). In South Plainfield, the average high-temperature rises, from a moderate 59°F (15°C) in April, to an agreeable 69.3°F (20.7°C). Weather in May »

The first month of the summer, June, is a warm month in South Plainfield, New Jersey, with average temperature fluctuating between 60.6°F (15.9°C) and 77.5°F (25.3°C). In South Plainfield, the average high-temperature slightly increases, from an agreeable 69.3°F (20.7°C) in May, to a moderately hot 77.5°F (25.3°C). Weather in June »

July, like June, in South Plainfield, New Jersey, is another warm summer month, with average temperature ranging between max 84.2°F (29°C) and min 67.5°F (19.7°C). With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 67.5°F (19.7°C), July is the warmest month. In July, the average heat index is evaluated at a tropical 92.3°F (33.5°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in South Plainfield, New Jersey, with average temperature ranging between min 66.2°F (19°C) and max 82°F (27.8°C). In August, the average high-temperature is almost the same as in July - a still warm 82°F (27.8°C). Weather in August »

The first month of the autumn, September, is also a moderately hot month in South Plainfield, New Jersey, with average temperature fluctuating between 59.4°F (15.2°C) and 75.4°F (24.1°C). In South Plainfield, the average high-temperature slightly decreases, from 82°F (27.8°C) in August, to a still warm 75.4°F (24.1°C). Weather in September »

October, the same as September, is another enjoyable autumn month in South Plainfield, New Jersey, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 63.1°F (17.3°C). In October, the average high-temperature decreases, from a warm 75.4°F (24.1°C) in September, to a comfortable 63.1°F (17.3°C). Weather in October »

The last month of the autumn, November, is also a fresh month in South Plainfield, New Jersey, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 38.1°F (3.4°C). In South Plainfield, New Jersey, the average high-temperature decreases, from a comfortable 63.1°F (17.3°C) in October, to a fresh 51.1°F (10.6°C). Weather in November »

The first month of the winter, December, is also a wintry month in South Plainfield, New Jersey, with average temperature ranging between min 31.1°F (-0.5°C) and max 42.3°F (5.7°C). In December, the average high-temperature slightly decreases, from a fresh 51.1°F (10.6°C) in November, to a cold 42.3°F (5.7°C). Weather in December »

What is the coldest month in South Plainfield?

The coldest month in South Plainfield, New Jersey, is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C).

How many days does it rain in South Plainfield?

In South Plainfield, New Jersey, during the entire year, the rain falls for 160.7 days and collects up to 30.12" (765mm) of precipitation.

When does it snow in South Plainfield?

Months with snowfall in South Plainfield, New Jersey, are January through May, October through December.

How many days does it snow in South Plainfield?

In South Plainfield, during the entire year, snow falls for 25.4 days, and aggregates up to 10.31" (262mm) of snow.

What is the month with the lowest UV index in South Plainfield?

Months with the lowest UV index in South Plainfield, New Jersey, are January through March, November and December, with an average maximum UV index of 2.

What are the most humid months in South Plainfield?

Months with the highest humidity in South Plainfield are February, October and December, with an average relative humidity of 78%.

What is the month with the least sunshine in South Plainfield?

The month with the least sunshine in South Plainfield is February, with an average of 4.6h of sunshine.

When does it snow the most in South Plainfield?

The month with the most snowfall in South Plainfield is March when snow falls for 5 days and typically aggregates up to 3.23" (82mm) of snow.

What is the least humid month in South Plainfield?

April and August, with an average relative humidity of 73%, are the least humid months in South Plainfield, New Jersey.

When it does not snow in South Plainfield?

June through September are months without snowfall in South Plainfield, New Jersey.

When are the longest days in South Plainfield?

June has the longest days of the year, with an average of 15h of daylight.

What are the months with the highest UV index in South Plainfield?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in South Plainfield?

With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 67.5°F (19.7°C), July is the warmest month.

What month has the most sunshine in South Plainfield?

With an average of 10.5h of sunshine, July has the most sunshine of the year in South Plainfield.

What is the driest month in South Plainfield?

September is the month with the least rainfall in South Plainfield. Rain falls for 12.9 days and accumulates 1.69" (43mm) of precipitation.

What is the wettest month in South Plainfield?

The month with the most rainfall is December when the rain falls for 11.5 days and typically aggregates up to 3.19" (81mm) of precipitation.

What is the month with the shortest days in South Plainfield?

With an average of 9.3h of daylight, December has the shortest days of the year in South Plainfield, New Jersey.
Average temperature - South Plainfield, NJ
Average humidity - South Plainfield, NJ

Months with the highest relative humidity are February, October and December (78%).
Months with the lowest relative humidity are April and August (73%).

Average rainfall - South Plainfield, NJ

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days - South Plainfield, NJ

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).

Average snowfall - South Plainfield, NJ
Average snowfall days - South Plainfield, NJ

Months with the highest number of snowfall days are January and February (7.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - South Plainfield, NJ

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average UV index - South Plainfield, NJ